JPS53123395A - Gypsum recovering method in wet exhaust gas desulfurization - Google Patents

Gypsum recovering method in wet exhaust gas desulfurization

Info

Publication number
JPS53123395A
JPS53123395A JP3810677A JP3810677A JPS53123395A JP S53123395 A JPS53123395 A JP S53123395A JP 3810677 A JP3810677 A JP 3810677A JP 3810677 A JP3810677 A JP 3810677A JP S53123395 A JPS53123395 A JP S53123395A
Authority
JP
Japan
Prior art keywords
gypsum
exhaust gas
recovering
gas desulfurization
wet exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3810677A
Other languages
Japanese (ja)
Other versions
JPS5829251B2 (en
Inventor
Etsuo Asanagi
Original Assignee
Chiyoda Chem Eng & Constr Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chiyoda Chem Eng & Constr Co Ltd filed Critical Chiyoda Chem Eng & Constr Co Ltd
Priority to JP52038106A priority Critical patent/JPS5829251B2/ja
Publication of JPS53123395A publication Critical patent/JPS53123395A/en
Publication of JPS5829251B2 publication Critical patent/JPS5829251B2/ja
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00Compounds of calcium, strontium, or barium
    • C01F11/46Sulfates
    • C01F11/464Sulfates of Ca from gases containing sulfur oxides

Abstract

PURPOSE: To effectively recover gypsum of good quality by a stable operation, by contacting SOx-contg. exhaust gas with a gypsum slurry of pH5-3 contg. a specified org. acid, sulfuric acid and alkali in the presence of O2 while adding lime so as to carry out absorption and oxidation of SOx in a single apparatus.
COPYRIGHT: (C)1978,JPO&Japio
JP52038106A 1977-04-05 1977-04-05 Expired JPS5829251B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52038106A JPS5829251B2 (en) 1977-04-05 1977-04-05

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP52038106A JPS5829251B2 (en) 1977-04-05 1977-04-05
US05/893,446 US4203954A (en) 1977-04-05 1978-04-04 Process for desulfurization of exhaust gases recovering gypsum as _by-product
DE19782814644 DE2814644C2 (en) 1977-04-05 1978-04-05

Publications (2)

Publication Number Publication Date
JPS53123395A true JPS53123395A (en) 1978-10-27
JPS5829251B2 JPS5829251B2 (en) 1983-06-21

Family

ID=12516210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52038106A Expired JPS5829251B2 (en) 1977-04-05 1977-04-05

Country Status (3)

Country Link
US (1) US4203954A (en)
JP (1) JPS5829251B2 (en)
DE (1) DE2814644C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926107C2 (en) * 1979-06-28 1982-01-28 Nukem Gmbh, 6450 Hanau, De
JPS57209624A (en) * 1981-06-22 1982-12-23 Mitsubishi Heavy Ind Ltd Stack gas desulfurization process
US4423018A (en) * 1982-06-23 1983-12-27 Monsanto Company Buffered flue gas scrubbing system using adipic acid by-product stream
DE3332894A1 (en) * 1983-09-13 1985-04-04 Hoelter Heinz Process for improving the scrubbing out of SO2 downstream of fossil-fuel power stations in the limestone process
JP3068312B2 (en) * 1992-03-11 2000-07-24 三菱重工業株式会社 Flue gas desulfurization method
US5215672A (en) * 1992-09-01 1993-06-01 The Babcock & Wilcox Company Purification of FGD gypsum product
US5558848A (en) * 1993-08-20 1996-09-24 Moser; Robert E. Clear liquid acid flue gas desulfurization system
US5486342A (en) * 1994-06-13 1996-01-23 Electric Power Research Institute Clear liquor scrubbing of sulfur dioxide with forced oxidation in flue gas desulfurization system
JP3564289B2 (en) * 1997-02-05 2004-09-08 三菱重工業株式会社 Method and apparatus for treating desulfurization absorbent
FI117324B (en) * 2003-09-10 2006-09-15 Kvaerner Power Oy Process of a flue gas cubes
CN102000491A (en) * 2010-11-18 2011-04-06 华北电力大学(保定) Combined synergist for wet flue gas desulfurization process and use method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023393A (en) * 1973-07-06 1975-03-13

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB416671A (en) * 1933-03-17 1934-09-17 Rudolf Lessing Improvements in and relating to the purification of combustion gases and apparatus therefor
US3632306A (en) * 1969-02-18 1972-01-04 Chemical Construction Corp Removal of sulfur dioxide from waste gases
JPS5017318B1 (en) * 1970-12-29 1975-06-19
US3833508A (en) * 1971-04-27 1974-09-03 Itt Gas removal method and composition
CA1047739A (en) * 1972-12-21 1979-02-06 Walter A. Cronkright (Jr.) Method of removing sulfur-containing gases from waste gas
US3798309A (en) * 1972-07-31 1974-03-19 Monsanto Co Process for recovering sulfur dioxide from gases using aqueous salt solution of glutaric acid
US3920794A (en) * 1972-09-28 1975-11-18 Little Inc A Method for removal of sulfur dioxide from gases
JPS5638247B2 (en) * 1973-02-10 1981-09-05
JPS5513770B2 (en) * 1973-09-26 1980-04-11
JPS5511371B2 (en) * 1973-12-25 1980-03-25
US3972980A (en) * 1974-07-31 1976-08-03 Radian Corporation Process removing sulfur dioxide from gases
JPS5342317B2 (en) * 1974-11-06 1978-11-10
DE2532373C3 (en) * 1975-07-19 1983-12-08 Hoelter, Heinz, Dipl.-Ing., 4390 Gladbeck, De
DE2647125A1 (en) * 1975-12-19 1978-04-20 Friedrich Von Stumm Mono-ski with pivoted steering board - can be controlled by skier placing his weight in correct position

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023393A (en) * 1973-07-06 1975-03-13

Also Published As

Publication number Publication date
JPS5829251B2 (en) 1983-06-21
DE2814644A1 (en) 1978-10-19
US4203954A (en) 1980-05-20
DE2814644C2 (en) 1991-11-21

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